You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither SPIE nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.

Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the SPIE website.

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

Abstract

X-ray phase contrast imaging has been investigated during the last two decades for potential benefits in soft tissue
imaging. Long imaging time, high radiation dose and general measurement complexity involving motion of x-ray
optical components have prevented the clinical translation of these methods. In all existing popular phase contrast
imaging methods, multiple measurements per projection angle involving motion of optical components are required to
achieve quantitatively accurate estimation of absorption, phase and differential phase. Recently we proposed an
algorithmic approach to use spectral detection data in a phase contrast imaging setup to obtain absorption, phase and
differential phase in a single-step. Our generic approach has been shown via simulations in all three types of phase
contrast imaging: propagation, coded aperture and grating interferometry. While other groups have used spectral
detector in phase contrast imaging setups, our proposed method is unique in outlining an approach to use this spectral
data to simplify phase contrast imaging. In this abstract we show the first experimental proof of our single-shot phase
retrieval using a Medipix3 photon counting detector in an edge illumination aperture (also referred to as coded aperture)
phase contrast set up as well as for a free space propagation setup. Our preliminary results validate our new transport
equation for edge illumination PCI and our spectral phase retrieval algorithm for both PCI methods being investigated.
Comparison with simulations also point to excellent performance of Medipix3 built-in charge sharing correction
mechanism.

Keywords/Phrases

Keywords

in

Remove

in

Remove

in

Remove

+ Add another field

Search In:

Proceedings

Volume

Journals +

Volume

Issue

Page

Advanced PhotonicsJournal of Applied Remote SensingJournal of Astronomical Telescopes Instruments and SystemsJournal of Biomedical OpticsJournal of Electronic ImagingJournal of Medical ImagingJournal of Micro/Nanolithography, MEMS, and MOEMSJournal of NanophotonicsJournal of Photonics for EnergyNeurophotonicsOptical EngineeringSPIE Reviews